// 变量
$bigScreenBg: rgba($color: #003366, $alpha: 0.5);

// 混入
@mixin display-flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

@mixin colorWhite {
  color: white; 
}

@mixin lineHeight($height) {
  line-height: $height;
  text-align: center;
}

// 导出所有变量和混入
:export {
  bigScreenBg: $bigScreenBg;
}